Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys

We study the properties of NiTi shape-memory nanoparticles coherently embedded in TiV matrices using three-dimensional atomistic simulations based on the modified embedded-atom method. To this end, we develop and present a suitable NiTiV potential for our simulations. Employing this potential, we id...

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Main Authors: Maisel, S. B., Ko, W.-S., Grabowski, B., Neugebauer, J., Zhang, J.-L.
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:English
Published: American Physical Society 2017
Online Access:http://hdl.handle.net/1721.1/112959
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author Maisel, S. B.
Ko, W.-S.
Grabowski, B.
Neugebauer, J.
Zhang, J.-L.
author2 Massachusetts Institute of Technology. Department of Materials Science and Engineering
author_facet Massachusetts Institute of Technology. Department of Materials Science and Engineering
Maisel, S. B.
Ko, W.-S.
Grabowski, B.
Neugebauer, J.
Zhang, J.-L.
author_sort Maisel, S. B.
collection MIT
description We study the properties of NiTi shape-memory nanoparticles coherently embedded in TiV matrices using three-dimensional atomistic simulations based on the modified embedded-atom method. To this end, we develop and present a suitable NiTiV potential for our simulations. Employing this potential, we identify the conditions under which the martensitic phase transformation of such a nanoparticle is triggered—specifically, how these conditions can be tuned by modifying the size of the particle, the composition of the surrounding matrix, or the temperature and strain state of the system. Using these insights, we establish how the transformation temperature of such particles can be influenced and discuss the practical implications in the context of shape-memory strengthened alloys.
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spelling mit-1721.1/1129592022-09-26T17:17:23Z Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys Maisel, S. B. Ko, W.-S. Grabowski, B. Neugebauer, J. Zhang, J.-L. Massachusetts Institute of Technology. Department of Materials Science and Engineering Zhang, J.-L. We study the properties of NiTi shape-memory nanoparticles coherently embedded in TiV matrices using three-dimensional atomistic simulations based on the modified embedded-atom method. To this end, we develop and present a suitable NiTiV potential for our simulations. Employing this potential, we identify the conditions under which the martensitic phase transformation of such a nanoparticle is triggered—specifically, how these conditions can be tuned by modifying the size of the particle, the composition of the surrounding matrix, or the temperature and strain state of the system. Using these insights, we establish how the transformation temperature of such particles can be influenced and discuss the practical implications in the context of shape-memory strengthened alloys. 2017-12-28T18:39:59Z 2017-12-28T18:39:59Z 2017-08 2017-05 2017-11-14T22:46:25Z Article http://purl.org/eprint/type/JournalArticle 2475-9953 http://hdl.handle.net/1721.1/112959 Maisel, S. B. et al. "Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys." Physical Review Materials 1, 3 (August 2017): 033610 © 2017 The Author(s) en http://dx.doi.org/10.1103/PhysRevMaterials.1.033610 Physical Review Materials Creative Commons Attribution http://creativecommons.org/licenses/by/3.0 authors application/pdf American Physical Society American Physical Society
spellingShingle Maisel, S. B.
Ko, W.-S.
Grabowski, B.
Neugebauer, J.
Zhang, J.-L.
Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
title Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
title_full Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
title_fullStr Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
title_full_unstemmed Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
title_short Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
title_sort thermomechanical response of niti shape memory nanoprecipitates in tiv alloys
url http://hdl.handle.net/1721.1/112959
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